. The Danish Ingolf-Expedition. Scientific expeditions; Arctic Ocean. 46 HYDROIDA The well developed colony in hand has been wrongly determined as Podocoryne carnea. It is hardlv intelligible that Bedot, in his "Materiaux pour servir a Phistoire des Hydroides", should have followed A11 man (1872) and referred this species to Stylactis; it is one of the few species of Hy- dractinia which, even at the extremities of small colonies, show no indication of the open network of stolons for which Stylactis should be distinguished. The species seems to be a boreal one, but it has hitherto bee
. The Danish Ingolf-Expedition. Scientific expeditions; Arctic Ocean. 46 HYDROIDA The well developed colony in hand has been wrongly determined as Podocoryne carnea. It is hardlv intelligible that Bedot, in his "Materiaux pour servir a Phistoire des Hydroides", should have followed A11 man (1872) and referred this species to Stylactis; it is one of the few species of Hy- dractinia which, even at the extremities of small colonies, show no indication of the open network of stolons for which Stylactis should be distinguished. The species seems to be a boreal one, but it has hitherto been recorded only from very few localities, as it has probably been mistaken for Hydractinia carnea also by investigators subsequent to M. Sars (1846). It has previously been recorded only from the coast of Norway near Bergen. In the Danish collections is found a well developed, though sterile, colony from Iceland (Seydisfjord), seated on the claw of a strand-crab. It seems to be the same species which is recorded, by the name. 200 m. 600m. Text-fig. M. Finds of Hydractinia Sarsi .— 1000 m. end Hydractinia carica * 2000m. in the Northern Atlantic. of Podocoryne carnea, from the north of Iceland, on the operculum of a Balanus Hammeri (Ssemunds- son 1902, 1911); here is only found the chitinous crust; but it differs considerably from the crust found in Hydractinia carnea, and, on the contrary, wholly agrees with Hydractinia Sarsii (Tab. I Fig. 12). Finally also West Greenland (Godthaab) has to be added to the localities where the species has been found (Text-fig. M). Hydractinia echinata (Fleming) van Beneden. 1828 Alcyoninin ecliinalian, Fleming, A History of British Animals, p. 517. 1841 Hydractinie, van Beneden, Recherches sur la structure de l'oeuf dans un nouveau Polype (genre Hydractinie), p. 89. 1909 Hydractinia monocarpa pars, Broch, Die Hydroideu der arktischen Meere, p. 199. srenre de. Please note that these images are extracted from scanned page images that ma
Size: 2056px × 1215px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectscientificexpedition
